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China BYD Group successfully developed IGBT core technology products
https://www.toutiao.com/a6633353502183653891/
财经网汽车频道 2018-12-10 21:19:25
财经网讯 12月10日比亚迪IGBT技术解析会在浙江宁波顺利召开。解析会上比亚迪在车规级领域发布了具有标杆性意义的IGBT4.0技术，再一次展示出其在电动车领域的领先地位。
2005年，比亚迪组建IGBT研发团队，正式进军IGBT领域。
此前，IGBT的核心技术长期以来始终掌握在国外厂商手里。到了2009年，比亚迪IGBT芯片成功通过中国电器工业协会电力电子分会组织的科技成果鉴定，这也标志着中国在IGBT芯片技术上实现零的突破，打破了国际巨头的技术垄断僵局。
如今，在该领域比亚迪截至2018年11月，累计申请IGBT相关专利175件，其中授权专利114件。这对于促进我国芯片产业以及新能源汽车产业的发展具有深远影响。
而IGBT和电池这两项技术是当今制约电动车发展核心，根据世界三大电子元器件分销商之一富昌电子（Future Electronics LTD）的统计：2018年，应用于新能源汽车的IGBT模块的交货周期最长已经达到52周（IGBT的交货周期正常情况下为8-12周）。而2018-2022年全球新能源汽车产量年复合增长率达30%，但同期车规级IGBT产量的年复合增长率仅为15.7%（IGBT产业整体同期为8.2% ）。
在如今新能源汽车行业高速发展浪潮下，可以预见，未来几年全球车规级IGBT市场的供应将愈加紧张。
“命脉”IGBT
IGBT (Insulated Gate Bipolar Transistor，绝缘栅双极型晶体管) ，其芯片与动力电池电芯并称为电动车的 “双芯”，是影响电动车性能的关键技术，其成本占整车成本的5%左右。
但IGBT因技术难、投资大，与动力电池一样，成为新能源汽车技术发展中难以逾越的鸿沟。可现今电池产业发展较快，2017年中国动力电池产量达44.5GWh(数据来源：高工产研锂电研究所(GGII) 《2017年中国动力电池产业发展报告》)，基本满足了新能源汽车的配套要求。但IGBT的发展却严重滞后，中高端IGBT产能严重不足，长期依赖国际巨头，导致“一芯难求”。
另外，IGBT也是新能源汽车最为核心的技术，其好坏直接影响电动车功率的释放速度：直接控制直、交流电的转换，同时对交流电机进行变频控制，决定驱动系统的扭矩（直接影响汽车加速能力）、最大输出功率（直接影响汽车最高时速）等，被称为电力电子装置的“CPU”。 因此，一块IGBT模块尽管只有巴掌大小，却是驾驭一台庞大装备的“命脉”。
据了解，IGBT模块设计难度大：需要考虑材料匹配、散热、结构、功率密度、外观、重量等多项指标。其主要开发难点存在于其尺寸仅有指甲大小，但却要在其上蚀刻十几万乃至几十万的微观结构电路，仅能在显微镜下查看。而晶圆制造工艺难度最主要体现在薄片加工处理上，晶圆制造的厂房洁净度要求非常高，需要一级净化。一个零点几微米的微尘掉落在晶圆上，就会造成一颗IGBT芯片失效。
根据相关数据显示，中国IGBT市场一直被国际巨头垄断，90%的份额掌握在英飞凌、三菱等海外巨头手中。
在会上，中国半导体行业协会IC设计分会副理事长周生明表示：“比亚迪有得天独厚的条件，做IGBT有最大的自己的应用市场，可以让我们充分施展拳脚，如果没有比亚迪这样整体的产业链，也许你造出来的IGBT很多人也不敢用，原来我们是依赖型经济，现在遇到了贸易争端发现依赖型不行，特别是我们的产品和他国产品形成竞争时，你会感觉到这是我们的瓶颈。但是比亚迪依靠自身强大的研发实力和人才的聚集、产业链的搭配，在这方面有了非常核心的突破，这个突破不是今天想明天投入就能实现的，是积累了十多年的技术、人才和产业链的供应，一般的企业不具备这种市立，所以这是今天我学习到的最深的东西。”
如今，比亚迪经过十余年耕耘，成功研发出全新的车规级产品IGBT4.0，成为车规级IGBT的标杆。得益于在IGBT领域的成果，使比亚迪电动汽车的超凡性能得以成功落地，并具有持续迭代升级的能力。如比亚迪全新一代唐EV的百公里加速时间达到行业领先的4.4秒的成绩，不少的功劳也得益于IGBT对电流准确、有效的控制。同时，比亚迪IGBT在芯片损耗、电流输出能力等方面的优异性能，和电池等其他关键技术一起，将比亚迪全新一代唐EV等纯电动车的续航里程提升到了600公里（60KM/小时等速行驶情况下）。
作为中国第一家实现车规级IGBT大规模量产、也是唯一一家拥有IGBT完整产业链的车企，此次发布会上，比亚迪还释放了另一重磅消息：比亚迪已投入巨资布局性能更加优异的第三代半导体材料SiC（碳化硅），有望于2019年推出搭载SiC电控的电动车。预计到2023年，比亚迪旗下的电动车将全面搭载SiC电控。
中国电器工业协会电力电子分会秘书长蔚红旗认为：“碳化硅是新一代功率半导体器件，不光是中国的功率器件的发展方向，在整个世界都是如此，但是中国的需求是最大的。半导体这块最大的市场需求在中国，不仅仅是在微电子还有新能源车、高铁包括输电领域，所以这块我们必须要自主研发进行发展，比亚迪今天演示的和我去工厂看到的的确是一些亮点，比方说明年的规划，比方说现在已经用到的铝碳化硅的散热技术，确实是让我耳目一新，原来没有想到是这样发展的程度。比亚迪如果像之前一如既往坚持的话，我想恐怕要不了十年就会取得相当令人瞩目的成就，因为这块确实是因为需求在拉动。刚才陈总演讲时也提到，比亚迪确实是全产业链的车企，这点对于功率半导体器件来说的确是非常好的契机，恐怕在全国的车企里没有第二家。”
“双芯”加持
享有“技术狂”之称的比亚迪掌握了功率半导体和电池“双芯”、电机、电控等电动车全产业链的核心技术。同时也是全球唯一一家同时拥有动力电池和电动汽车大规模生产能力的企业。
电池技术方面，比亚迪在电池领域已有24年经验，具备100%自主研发、设计和生产能力，并形成了完整（原材料、研发、设计、制造、应用以及回收）的电池产业链。
电机方面，比亚迪新能源汽车采用了永磁同步电机，具有高效率、高功率密度、高可靠性的特点。相对国内工业电机企业转型制造的动力电机，以及部分车企外采的做法，比亚迪作为掌握汽车驱动电机核心技术的汽车品牌，配套兼容性更强。
而电控方面，IGBT是电动汽车控制系统的核心，与动力电池的电芯一起被称为电动车“双芯”，是制约电动车商业化的两大核心技术。比亚迪在车规级IGBT领域行业标杆级的技术实力，让比亚迪的电控系统在性能上获得质的提升。
如今，比亚迪已经形成的十分完善且丰富的产品矩阵，并实现新能源汽车全领域覆盖并大规模商业应用。目前，比亚迪已经形成乘用车和商用车两大产品系列，涵盖七大常规领域和四大特殊领域（即“7+4”战略，其中“7”为私家车、出租车、城市公交、道路客运、城市商品物流、城市建筑物流、环卫车；“4”为仓储、港口、机场、矿山专用车辆）。
此次发布会上，比亚迪宣布，已经成功研发了SiC MOSFET（汽车功率半导体包括基于硅或碳化硅等材料打造的IGBT或 MOSFET等），有望于2019年推出搭载SiC电控的电动车。预计到2023年，比亚迪将在旗下的电动车中，实现SiC基车用功率半导体对硅基IGBT的全面替代，将整车性能在现有基础上再提升10%。
比亚迪第六事业部兼太阳能事业部总经理陈刚表示：“SiC MOSFET将成为比亚迪电动车性能持续迭代更新的新一代‘杀手锏’，我们期望在加速、续航等性能指标上，为广大消费者带来更多惊喜。”
结语：
随着能源危机、气候变化和环境污染的加剧，电动化将成为汽车历史最大的变革。而中国作为最早大规模推广新能源汽车的国家，掌握核心技术将成为中国企业变大、变强的必经之路。
以“技术”为核心的比亚迪拥有超过20000名技术人员。截止2018年9月，比亚迪集团全球累计申请专利超过2.4万项，其中已被授权专利约1.5万项，这也许是比亚迪对“技术”二字最为生动的诠释。
China BYD Group successfully developed IGBT core technology Products
Financial network car channel 2018-12-10 21:19:25
Financial News On December 10, BYD IGBT Technology Analysis Conference was successfully held in Ningbo, Zhejiang. At the resolution meeting, BYD released the benchmark IGBT4.0 technology in the field of vehicle regulation, once again demonstrating its leading position in the field of electric vehicles.
In 2005, BYD set up an IGBT R&D team and officially entered the IGBT field.
Previously, the core technology of IGBT has long been in the hands of foreign manufacturers. In 2009, BYD IGBT chips successfully passed the scientific and technological achievements appraisal organized by China Electrical Equipment Industry Association Power Electronics Branch, which also marked China's zero breakthrough in IGBT chip technology and broke the international monopoly of technological monopoly.
Today, in this field, BYD has applied for 175 patents related to IGBTs, including 114 patents, as of November 2018. This has far-reaching implications for promoting the development of China's chip industry and the new energy vehicle industry.
The two technologies of IGBT and battery are the core of the current development of electric vehicles. According to the statistics of Future Electronics LTD, one of the world's three major electronic component distributors: 2018, IGBT modules for new energy vehicles. The lead time has been up to 52 weeks (the delivery cycle of the IGBT is normally 8-12 weeks). In 2018-2022, the global compound annual growth rate of new energy vehicle production reached 30%, but the annual compound growth rate of vehicle-level IGBT production was only 15.7% (the IGBT industry as a whole was 8.2%).
Under the current wave of rapid development of the new energy vehicle industry, it is foreseeable that the supply of the global automotive-grade IGBT market will become increasingly tight in the next few years.
"Lifeline" IGBT
IGBT (Insulated Gate Bipolar Transistor), its chip and power battery cells, also known as the "double core" of electric vehicles, is the key technology affecting the performance of electric vehicles, and its cost accounts for 5 of the cost of the entire vehicle. %about.
However, due to technical difficulties and large investment, IGBTs, like power batteries, have become an insurmountable gap in the development of new energy vehicle technologies. Nowadays, the battery industry is developing rapidly. In 2017, China's power battery output reached 44.5GWh (data source: High-tech Research Institute Lithium-Ion Research Institute (GGII) "2017 China Power Battery Industry Development Report"), which basically satisfied the new energy vehicles. Supporting requirements. However, the development of IGBTs is seriously lagging behind. The medium and high-end IGBTs are seriously deficient in production capacity, and they have long relied on international giants, resulting in “one core is hard to find”.
In addition, IGBT is also the core technology of new energy vehicles. Its quality directly affects the release speed of electric vehicles: direct control of direct and alternating current conversion, and variable frequency control of AC motors to determine the torque of the drive system (directly affecting vehicle acceleration) The capacity, the maximum output power (which directly affects the maximum speed of the car), etc., are called the "CPU" of the power electronic device. Therefore, an IGBT module, although only the size of a palm, is the "lifeline" of a huge equipment.
It is understood that IGBT module design is difficult: need to consider material matching, heat dissipation, structure, power density, appearance, weight and other indicators. The main development difficulty lies in the fact that the size of the nail is only the size of the nail, but it is necessary to etch hundreds of thousands or even hundreds of thousands of microscopic circuits on it, which can only be viewed under the microscope. The difficulty of the wafer manufacturing process is mainly reflected in the processing of the sheet. The cleanliness of the wafer manufacturing plant is very high and requires a level of purification. A fraction of a micron of dust falling on the wafer will cause an IGBT chip to fail.
According to relevant data, China's IGBT market has been monopolized by international giants, and 90% of its shares are in the hands of overseas giants such as Infineon and Mitsubishi.
At the meeting, Zhou Shengming, vice chairman of the IC Design Branch of China Semiconductor Industry Association, said: "BYD has unique conditions, and IGBT has the largest application market of its own, which allows us to fully exert our fists. If there is no such industrial chain as BYD, Maybe many of the IGBTs you made don't dare to use them. We used to rely on the economy. Now we have encountered trade disputes and found that we can't rely on them. Especially when our products compete with other countries' products, you will feel that this is ours. Bottleneck. However, BYD relies on its strong R&D strength and talent pooling and industry chain matching. It has made a very core breakthrough in this respect. This breakthrough is not realized today if you want to invest tomorrow. It is a technology that has accumulated more than ten years. The supply of talents and industrial chains, the average enterprise does not have such a city, so this is the deepest thing I have learned today."
Today, after more than ten years of hard work, BYD has successfully developed a new car-grade product IGBT4.0, which has become the benchmark for car-level IGBTs. Thanks to the achievements in the field of IGBT, the extraordinary performance of BYD electric vehicles has been successfully carried out and has the ability to continuously iterate and upgrade. For example, the 100-kilometer acceleration time of BYD's new generation Tang EV has reached the industry leading 4.4 seconds, and many of the credits have also benefited from the accurate and effective control of the current by the IGBT. At the same time, BYD IGBT's excellent performance in terms of chip loss and current output capability, together with other key technologies such as batteries, will increase the cruising range of BYD's new generation of Tang EV and other pure electric vehicles to 600 km (60KM/h constant speed driving situation). under).
As the first large-scale mass production of IGBTs in China, and the only car company with complete industrial chain of IGBTs, BYD also released another heavy news at the press conference: BYD has invested heavily in layout performance. A more excellent third-generation semiconductor material, SiC (silicon carbide), is expected to be launched in 2019 with an electric vehicle equipped with SiC electronic control. It is estimated that by 2023, BYD's electric vehicles will be fully equipped with SiC electronic control.
Wei Hongqi, secretary general of the Power Electronics Branch of China Electrical Equipment Industry Association, said: "SiC is a new generation of power semiconductor devices, not only the development direction of power devices in China, but also in the whole world, but China's demand is the largest. The biggest market demand in China is not only in microelectronics but also in new energy vehicles and high-speed rails, including transmission. So we have to develop and develop independently. What BYD demonstrated today and what I went to the factory are indeed some. Highlights, for example, the planning of the year, for example, the heat-dissipation technology of aluminum silicon carbide that has been used now is really refreshing. I did not expect this to be the degree of development. If BYD insists on it as before, I am afraid I will not be able to. Ten years will achieve quite impressive achievements, because this piece is really because the demand is pulling. Just mentioned in the speech of General Chen, BYD is indeed a car enterprise in the whole industry chain, which is true for power semiconductor devices. It is a very good opportunity, I am afraid there is no second car in the country."
"Double core" blessing
BYD, known as the “Technology Mania”, has mastered the core technologies of the entire industry chain of power semiconductors and batteries, such as “double core”, electric motors and electronic control. It is also the only company in the world that has both large-scale production capacity of power batteries and electric vehicles.
In terms of battery technology, BYD has 24 years of experience in the battery field, with 100% independent research and development, design and production capacity, and formed a complete battery industry chain (raw materials, research and development, design, manufacturing, application and recycling).
In terms of motors, BYD's new energy vehicles use permanent magnet synchronous motors with high efficiency, high power density and high reliability. Compared with the domestic electric motor enterprises' transformation of the manufacturing of power motors, as well as the practice of some car companies, BYD as a car brand that masters the core technology of automotive drive motors, the compatibility is stronger.
In terms of electronic control, IGBT is the core of electric vehicle control system. Together with the battery of power battery, it is called “double core” of electric vehicle. It is the two core technologies that restrict the commercialization of electric vehicles. BYD's technical strength in the automotive-grade IGBT industry benchmarks allows BYD's electronic control system to achieve a qualitative improvement in performance.
Today, BYD has formed a very complete and rich product matrix, and realizes the coverage of new energy vehicles in all areas and large-scale commercial applications. At present, BYD has formed two series of passenger cars and commercial vehicles, covering seven general areas and four special areas (ie “7+4” strategy, of which “7” is private cars, taxis, city buses, roads Passenger transport, urban commodity logistics, urban building flow, sanitation vehicles; "4" for warehousing, ports, airports, mine special vehicles).
At the press conference, BYD announced that it has successfully developed SiC MOSFETs (automobile power semiconductors including IGBTs or MOSFETs based on materials such as silicon or silicon carbide), and it is expected that electric vehicles equipped with SiC electronic control will be launched in 2019. It is expected that by 2023, BYD will realize a comprehensive replacement of silicon-based IGBTs for SiC-based automotive power semiconductors in its electric vehicles, and improve vehicle performance by 10% on the existing basis.
Chen Gang, the sixth division of BYD and the general manager of the solar energy division, said: "The SiC MOSFET will become a new generation of 'killer' for the continuous iterative update of BYD's electric vehicle performance. We hope to bring the performance indicators such as acceleration and endurance to the consumers. more surprise."
Conclusion:
With the energy crisis, climate change and environmental pollution, electrification will become the biggest change in the history of automobiles. As China's first large-scale promotion of new energy vehicles, mastering core technologies will become the only way for Chinese companies to become bigger and stronger.
BYD has “Technology” as its core and has more than 20,000 technicians. As of September 2018, BYD Group has applied for more than 24,000 patents worldwide, of which about 15,000 patents have been granted. This may be BYD's most vivid interpretation of the word “technology”.
https://www.toutiao.com/a6633414470594986509/
https://www.toutiao.com/a6633353502183653891/
财经网汽车频道 2018-12-10 21:19:25
财经网讯 12月10日比亚迪IGBT技术解析会在浙江宁波顺利召开。解析会上比亚迪在车规级领域发布了具有标杆性意义的IGBT4.0技术，再一次展示出其在电动车领域的领先地位。
2005年，比亚迪组建IGBT研发团队，正式进军IGBT领域。
此前，IGBT的核心技术长期以来始终掌握在国外厂商手里。到了2009年，比亚迪IGBT芯片成功通过中国电器工业协会电力电子分会组织的科技成果鉴定，这也标志着中国在IGBT芯片技术上实现零的突破，打破了国际巨头的技术垄断僵局。
如今，在该领域比亚迪截至2018年11月，累计申请IGBT相关专利175件，其中授权专利114件。这对于促进我国芯片产业以及新能源汽车产业的发展具有深远影响。
而IGBT和电池这两项技术是当今制约电动车发展核心，根据世界三大电子元器件分销商之一富昌电子（Future Electronics LTD）的统计：2018年，应用于新能源汽车的IGBT模块的交货周期最长已经达到52周（IGBT的交货周期正常情况下为8-12周）。而2018-2022年全球新能源汽车产量年复合增长率达30%，但同期车规级IGBT产量的年复合增长率仅为15.7%（IGBT产业整体同期为8.2% ）。
在如今新能源汽车行业高速发展浪潮下，可以预见，未来几年全球车规级IGBT市场的供应将愈加紧张。
“命脉”IGBT
IGBT (Insulated Gate Bipolar Transistor，绝缘栅双极型晶体管) ，其芯片与动力电池电芯并称为电动车的 “双芯”，是影响电动车性能的关键技术，其成本占整车成本的5%左右。
但IGBT因技术难、投资大，与动力电池一样，成为新能源汽车技术发展中难以逾越的鸿沟。可现今电池产业发展较快，2017年中国动力电池产量达44.5GWh(数据来源：高工产研锂电研究所(GGII) 《2017年中国动力电池产业发展报告》)，基本满足了新能源汽车的配套要求。但IGBT的发展却严重滞后，中高端IGBT产能严重不足，长期依赖国际巨头，导致“一芯难求”。
另外，IGBT也是新能源汽车最为核心的技术，其好坏直接影响电动车功率的释放速度：直接控制直、交流电的转换，同时对交流电机进行变频控制，决定驱动系统的扭矩（直接影响汽车加速能力）、最大输出功率（直接影响汽车最高时速）等，被称为电力电子装置的“CPU”。 因此，一块IGBT模块尽管只有巴掌大小，却是驾驭一台庞大装备的“命脉”。
据了解，IGBT模块设计难度大：需要考虑材料匹配、散热、结构、功率密度、外观、重量等多项指标。其主要开发难点存在于其尺寸仅有指甲大小，但却要在其上蚀刻十几万乃至几十万的微观结构电路，仅能在显微镜下查看。而晶圆制造工艺难度最主要体现在薄片加工处理上，晶圆制造的厂房洁净度要求非常高，需要一级净化。一个零点几微米的微尘掉落在晶圆上，就会造成一颗IGBT芯片失效。
根据相关数据显示，中国IGBT市场一直被国际巨头垄断，90%的份额掌握在英飞凌、三菱等海外巨头手中。
在会上，中国半导体行业协会IC设计分会副理事长周生明表示：“比亚迪有得天独厚的条件，做IGBT有最大的自己的应用市场，可以让我们充分施展拳脚，如果没有比亚迪这样整体的产业链，也许你造出来的IGBT很多人也不敢用，原来我们是依赖型经济，现在遇到了贸易争端发现依赖型不行，特别是我们的产品和他国产品形成竞争时，你会感觉到这是我们的瓶颈。但是比亚迪依靠自身强大的研发实力和人才的聚集、产业链的搭配，在这方面有了非常核心的突破，这个突破不是今天想明天投入就能实现的，是积累了十多年的技术、人才和产业链的供应，一般的企业不具备这种市立，所以这是今天我学习到的最深的东西。”
如今，比亚迪经过十余年耕耘，成功研发出全新的车规级产品IGBT4.0，成为车规级IGBT的标杆。得益于在IGBT领域的成果，使比亚迪电动汽车的超凡性能得以成功落地，并具有持续迭代升级的能力。如比亚迪全新一代唐EV的百公里加速时间达到行业领先的4.4秒的成绩，不少的功劳也得益于IGBT对电流准确、有效的控制。同时，比亚迪IGBT在芯片损耗、电流输出能力等方面的优异性能，和电池等其他关键技术一起，将比亚迪全新一代唐EV等纯电动车的续航里程提升到了600公里（60KM/小时等速行驶情况下）。
作为中国第一家实现车规级IGBT大规模量产、也是唯一一家拥有IGBT完整产业链的车企，此次发布会上，比亚迪还释放了另一重磅消息：比亚迪已投入巨资布局性能更加优异的第三代半导体材料SiC（碳化硅），有望于2019年推出搭载SiC电控的电动车。预计到2023年，比亚迪旗下的电动车将全面搭载SiC电控。
中国电器工业协会电力电子分会秘书长蔚红旗认为：“碳化硅是新一代功率半导体器件，不光是中国的功率器件的发展方向，在整个世界都是如此，但是中国的需求是最大的。半导体这块最大的市场需求在中国，不仅仅是在微电子还有新能源车、高铁包括输电领域，所以这块我们必须要自主研发进行发展，比亚迪今天演示的和我去工厂看到的的确是一些亮点，比方说明年的规划，比方说现在已经用到的铝碳化硅的散热技术，确实是让我耳目一新，原来没有想到是这样发展的程度。比亚迪如果像之前一如既往坚持的话，我想恐怕要不了十年就会取得相当令人瞩目的成就，因为这块确实是因为需求在拉动。刚才陈总演讲时也提到，比亚迪确实是全产业链的车企，这点对于功率半导体器件来说的确是非常好的契机，恐怕在全国的车企里没有第二家。”
“双芯”加持
享有“技术狂”之称的比亚迪掌握了功率半导体和电池“双芯”、电机、电控等电动车全产业链的核心技术。同时也是全球唯一一家同时拥有动力电池和电动汽车大规模生产能力的企业。
电池技术方面，比亚迪在电池领域已有24年经验，具备100%自主研发、设计和生产能力，并形成了完整（原材料、研发、设计、制造、应用以及回收）的电池产业链。
电机方面，比亚迪新能源汽车采用了永磁同步电机，具有高效率、高功率密度、高可靠性的特点。相对国内工业电机企业转型制造的动力电机，以及部分车企外采的做法，比亚迪作为掌握汽车驱动电机核心技术的汽车品牌，配套兼容性更强。
而电控方面，IGBT是电动汽车控制系统的核心，与动力电池的电芯一起被称为电动车“双芯”，是制约电动车商业化的两大核心技术。比亚迪在车规级IGBT领域行业标杆级的技术实力，让比亚迪的电控系统在性能上获得质的提升。
如今，比亚迪已经形成的十分完善且丰富的产品矩阵，并实现新能源汽车全领域覆盖并大规模商业应用。目前，比亚迪已经形成乘用车和商用车两大产品系列，涵盖七大常规领域和四大特殊领域（即“7+4”战略，其中“7”为私家车、出租车、城市公交、道路客运、城市商品物流、城市建筑物流、环卫车；“4”为仓储、港口、机场、矿山专用车辆）。
此次发布会上，比亚迪宣布，已经成功研发了SiC MOSFET（汽车功率半导体包括基于硅或碳化硅等材料打造的IGBT或 MOSFET等），有望于2019年推出搭载SiC电控的电动车。预计到2023年，比亚迪将在旗下的电动车中，实现SiC基车用功率半导体对硅基IGBT的全面替代，将整车性能在现有基础上再提升10%。
比亚迪第六事业部兼太阳能事业部总经理陈刚表示：“SiC MOSFET将成为比亚迪电动车性能持续迭代更新的新一代‘杀手锏’，我们期望在加速、续航等性能指标上，为广大消费者带来更多惊喜。”
结语：
随着能源危机、气候变化和环境污染的加剧，电动化将成为汽车历史最大的变革。而中国作为最早大规模推广新能源汽车的国家，掌握核心技术将成为中国企业变大、变强的必经之路。
以“技术”为核心的比亚迪拥有超过20000名技术人员。截止2018年9月，比亚迪集团全球累计申请专利超过2.4万项，其中已被授权专利约1.5万项，这也许是比亚迪对“技术”二字最为生动的诠释。
China BYD Group successfully developed IGBT core technology Products
Financial network car channel 2018-12-10 21:19:25
Financial News On December 10, BYD IGBT Technology Analysis Conference was successfully held in Ningbo, Zhejiang. At the resolution meeting, BYD released the benchmark IGBT4.0 technology in the field of vehicle regulation, once again demonstrating its leading position in the field of electric vehicles.
In 2005, BYD set up an IGBT R&D team and officially entered the IGBT field.
Previously, the core technology of IGBT has long been in the hands of foreign manufacturers. In 2009, BYD IGBT chips successfully passed the scientific and technological achievements appraisal organized by China Electrical Equipment Industry Association Power Electronics Branch, which also marked China's zero breakthrough in IGBT chip technology and broke the international monopoly of technological monopoly.
Today, in this field, BYD has applied for 175 patents related to IGBTs, including 114 patents, as of November 2018. This has far-reaching implications for promoting the development of China's chip industry and the new energy vehicle industry.
The two technologies of IGBT and battery are the core of the current development of electric vehicles. According to the statistics of Future Electronics LTD, one of the world's three major electronic component distributors: 2018, IGBT modules for new energy vehicles. The lead time has been up to 52 weeks (the delivery cycle of the IGBT is normally 8-12 weeks). In 2018-2022, the global compound annual growth rate of new energy vehicle production reached 30%, but the annual compound growth rate of vehicle-level IGBT production was only 15.7% (the IGBT industry as a whole was 8.2%).
Under the current wave of rapid development of the new energy vehicle industry, it is foreseeable that the supply of the global automotive-grade IGBT market will become increasingly tight in the next few years.
"Lifeline" IGBT
IGBT (Insulated Gate Bipolar Transistor), its chip and power battery cells, also known as the "double core" of electric vehicles, is the key technology affecting the performance of electric vehicles, and its cost accounts for 5 of the cost of the entire vehicle. %about.
However, due to technical difficulties and large investment, IGBTs, like power batteries, have become an insurmountable gap in the development of new energy vehicle technologies. Nowadays, the battery industry is developing rapidly. In 2017, China's power battery output reached 44.5GWh (data source: High-tech Research Institute Lithium-Ion Research Institute (GGII) "2017 China Power Battery Industry Development Report"), which basically satisfied the new energy vehicles. Supporting requirements. However, the development of IGBTs is seriously lagging behind. The medium and high-end IGBTs are seriously deficient in production capacity, and they have long relied on international giants, resulting in “one core is hard to find”.
In addition, IGBT is also the core technology of new energy vehicles. Its quality directly affects the release speed of electric vehicles: direct control of direct and alternating current conversion, and variable frequency control of AC motors to determine the torque of the drive system (directly affecting vehicle acceleration) The capacity, the maximum output power (which directly affects the maximum speed of the car), etc., are called the "CPU" of the power electronic device. Therefore, an IGBT module, although only the size of a palm, is the "lifeline" of a huge equipment.
It is understood that IGBT module design is difficult: need to consider material matching, heat dissipation, structure, power density, appearance, weight and other indicators. The main development difficulty lies in the fact that the size of the nail is only the size of the nail, but it is necessary to etch hundreds of thousands or even hundreds of thousands of microscopic circuits on it, which can only be viewed under the microscope. The difficulty of the wafer manufacturing process is mainly reflected in the processing of the sheet. The cleanliness of the wafer manufacturing plant is very high and requires a level of purification. A fraction of a micron of dust falling on the wafer will cause an IGBT chip to fail.
According to relevant data, China's IGBT market has been monopolized by international giants, and 90% of its shares are in the hands of overseas giants such as Infineon and Mitsubishi.
At the meeting, Zhou Shengming, vice chairman of the IC Design Branch of China Semiconductor Industry Association, said: "BYD has unique conditions, and IGBT has the largest application market of its own, which allows us to fully exert our fists. If there is no such industrial chain as BYD, Maybe many of the IGBTs you made don't dare to use them. We used to rely on the economy. Now we have encountered trade disputes and found that we can't rely on them. Especially when our products compete with other countries' products, you will feel that this is ours. Bottleneck. However, BYD relies on its strong R&D strength and talent pooling and industry chain matching. It has made a very core breakthrough in this respect. This breakthrough is not realized today if you want to invest tomorrow. It is a technology that has accumulated more than ten years. The supply of talents and industrial chains, the average enterprise does not have such a city, so this is the deepest thing I have learned today."
Today, after more than ten years of hard work, BYD has successfully developed a new car-grade product IGBT4.0, which has become the benchmark for car-level IGBTs. Thanks to the achievements in the field of IGBT, the extraordinary performance of BYD electric vehicles has been successfully carried out and has the ability to continuously iterate and upgrade. For example, the 100-kilometer acceleration time of BYD's new generation Tang EV has reached the industry leading 4.4 seconds, and many of the credits have also benefited from the accurate and effective control of the current by the IGBT. At the same time, BYD IGBT's excellent performance in terms of chip loss and current output capability, together with other key technologies such as batteries, will increase the cruising range of BYD's new generation of Tang EV and other pure electric vehicles to 600 km (60KM/h constant speed driving situation). under).
As the first large-scale mass production of IGBTs in China, and the only car company with complete industrial chain of IGBTs, BYD also released another heavy news at the press conference: BYD has invested heavily in layout performance. A more excellent third-generation semiconductor material, SiC (silicon carbide), is expected to be launched in 2019 with an electric vehicle equipped with SiC electronic control. It is estimated that by 2023, BYD's electric vehicles will be fully equipped with SiC electronic control.
Wei Hongqi, secretary general of the Power Electronics Branch of China Electrical Equipment Industry Association, said: "SiC is a new generation of power semiconductor devices, not only the development direction of power devices in China, but also in the whole world, but China's demand is the largest. The biggest market demand in China is not only in microelectronics but also in new energy vehicles and high-speed rails, including transmission. So we have to develop and develop independently. What BYD demonstrated today and what I went to the factory are indeed some. Highlights, for example, the planning of the year, for example, the heat-dissipation technology of aluminum silicon carbide that has been used now is really refreshing. I did not expect this to be the degree of development. If BYD insists on it as before, I am afraid I will not be able to. Ten years will achieve quite impressive achievements, because this piece is really because the demand is pulling. Just mentioned in the speech of General Chen, BYD is indeed a car enterprise in the whole industry chain, which is true for power semiconductor devices. It is a very good opportunity, I am afraid there is no second car in the country."
"Double core" blessing
BYD, known as the “Technology Mania”, has mastered the core technologies of the entire industry chain of power semiconductors and batteries, such as “double core”, electric motors and electronic control. It is also the only company in the world that has both large-scale production capacity of power batteries and electric vehicles.
In terms of battery technology, BYD has 24 years of experience in the battery field, with 100% independent research and development, design and production capacity, and formed a complete battery industry chain (raw materials, research and development, design, manufacturing, application and recycling).
In terms of motors, BYD's new energy vehicles use permanent magnet synchronous motors with high efficiency, high power density and high reliability. Compared with the domestic electric motor enterprises' transformation of the manufacturing of power motors, as well as the practice of some car companies, BYD as a car brand that masters the core technology of automotive drive motors, the compatibility is stronger.
In terms of electronic control, IGBT is the core of electric vehicle control system. Together with the battery of power battery, it is called “double core” of electric vehicle. It is the two core technologies that restrict the commercialization of electric vehicles. BYD's technical strength in the automotive-grade IGBT industry benchmarks allows BYD's electronic control system to achieve a qualitative improvement in performance.
Today, BYD has formed a very complete and rich product matrix, and realizes the coverage of new energy vehicles in all areas and large-scale commercial applications. At present, BYD has formed two series of passenger cars and commercial vehicles, covering seven general areas and four special areas (ie “7+4” strategy, of which “7” is private cars, taxis, city buses, roads Passenger transport, urban commodity logistics, urban building flow, sanitation vehicles; "4" for warehousing, ports, airports, mine special vehicles).
At the press conference, BYD announced that it has successfully developed SiC MOSFETs (automobile power semiconductors including IGBTs or MOSFETs based on materials such as silicon or silicon carbide), and it is expected that electric vehicles equipped with SiC electronic control will be launched in 2019. It is expected that by 2023, BYD will realize a comprehensive replacement of silicon-based IGBTs for SiC-based automotive power semiconductors in its electric vehicles, and improve vehicle performance by 10% on the existing basis.
Chen Gang, the sixth division of BYD and the general manager of the solar energy division, said: "The SiC MOSFET will become a new generation of 'killer' for the continuous iterative update of BYD's electric vehicle performance. We hope to bring the performance indicators such as acceleration and endurance to the consumers. more surprise."
Conclusion:
With the energy crisis, climate change and environmental pollution, electrification will become the biggest change in the history of automobiles. As China's first large-scale promotion of new energy vehicles, mastering core technologies will become the only way for Chinese companies to become bigger and stronger.
BYD has “Technology” as its core and has more than 20,000 technicians. As of September 2018, BYD Group has applied for more than 24,000 patents worldwide, of which about 15,000 patents have been granted. This may be BYD's most vivid interpretation of the word “technology”.
https://www.toutiao.com/a6633414470594986509/
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